full-disclosure - nSense-2011-001: VeryPDF pdf2tif

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Date: Wed, 13 Apr 2011 11:32:28 +0300
From: Henri Lindberg <henri+fulldisclosure@...nse.fi>
To: full-disclosure@...ts.grok.org.uk
Subject: nSense-2011-001: VeryPDF pdf2tif

       nSense Vulnerability Research Security Advisory NSENSE-2011-001
       ---------------------------------------------------------------

       Affected Vendor:    VeryPDF (+ Multiple others, eg
                           Barcode Reader Tookit version 7.4.1.3 )
       Affected Product:   PDF Extract TIFF COM (prior to April 8'th)
       Platform:           Windows
       Impact:             Local/Remote code execution
       Vendor response:    Patch
       CVE:                None
       CVSS2:              9.3 - (AV:N/AC:M/Au:N/C:C/I:C/A:C)
       Credit:             JODE

       Technical details
       ---------------------------------------------------------------

       A PDF file format parsing vulnerability exists in the pdf2tif
       parser and can be exploited with a specially crafted input
       file. The plugin suffers from a buffer overflow flaw.

       Many server side applications use the library when converting
       pdf files to images. If an attacker is able to send the
       application a malicious file, successful exploitation leads to
       code being executed in  the context of the running application.

       Solution
       Upgrade to the latest version of the pdf2tif.dll.

       Timeline:
       April    1th                  Contacted vendor
       April    1th                  Vendor responded, requesting gold
	                             support license agreement number.
       April    8th                  Vendor released the fix
       April    12th                 Advisory released

       Links:
       http://www.nsense.fi                       http://www.nsense.dk



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                      D r i v e n   b y   t h e   c h a l l e n g e _

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